J K Export supplies Open Delivery Test Kit. J K Export manufactures fire, safety and security systems. Open Delivery Test Kit simulates the rising effect of real smoke associated with fire. Open Delivery Test Kit is recommended for use in areas where airflow does not need to be restricted; such as; warehouses, multi-story atriums, private residences. This kit is designed with safety in mind; no ladders, no climbing, no reaching around obstacles. It is available in one convenient equipment carrying bag.